인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
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지원사업
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커뮤니티
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.11
- 수록면
- 1,351 - 1,365 (15page)
이용수
초록· 키워드
This paper proposes two modified Z-source inverter topologies, namely an embedded L-Z-source inverter (EL-ZSI) and a coupled inductor L-Z source inverter (CL-ZSI). The proposed topologies offer a high voltage gain with a reduced passive component count and reduction in source current ripple when compared to conventional ZSI topologies. Additionally, they prevent overshoot in the dc-link voltage by suppressing heavy inrush currents. This feature reduces the transition time to reach the peak value of the dc-link voltage, and reduces the risk of component failure and overrating due to the inrush current. EL-ZSI and CL-ZSI possess all of the inherent advantages of the conventional L-ZSI topology while eliminating its drawbacks. To verify the effectiveness of the proposed topologies, MATLAB/Simulink models and scaled down laboratory prototypes were constructed. Experiments were performed at a low shoot through duty ratio of 0.1 and a modulation index as high as 0.9 to obtain a peak dc-link voltage of 53 V. This paper demonstrates the superiority of the proposed topologies over conventional ZSI topologies through a detailed comparative analysis. Moreover, experimental results verify that the proposed topologies would be advantageous for renewable energy source applications since they provide voltage gain enhancement, inrush current, dc-link voltage overshoot suppression and a reduction of the peak to peak source current ripple.
#Coupled inductor
#Current ripple
#Split voltage sources
#Voltage gain
#Voltage overshoot
#Z-source inverter
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목차
- Abstract
- I. INTRODUCTION
- II. ANALYSIS OF THE PROPOSED TOPOLOGIES
- III. SIMPLE BOOST CONTROL OF THE PROPOSED TOPOLOGIES
- IV. ANALYSIS OF THE ISSUES OF START-UP VOLTAGE OVERSHOOT AND CURRENT RIPPLE
- V. COMPARATIVE ANALYSIS OF THE PROPOSED TOPOLOGIES WITH THE CONVENTIONAL TOPOLOGIES
- VI. DERIVATION OF MATHEMATICAL AND MAGNETIC CONDITIONS FOR CURRENT RIPPLE CANCELLATION IN THE CL-ZSI
- VII. SIMULATION AND EXPERIMENTAL RESULTS
- VIII. CONCLUSION
- REFERENCES